|Table of Contents|

A Digital Watermarking Algorithm for Binary Text Image(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2010年01期
Page:
63-66
Research Field:
Publishing date:

Info

Title:
A Digital Watermarking Algorithm for Binary Text Image
Author(s):
Du Qing
School of Computer Engineering,Nanjing Institute of Technology,Nanjing 211167,China
Keywords:
frag ile w aterm ark;  binary im age;  ver ification
PACS:
TP309.7
DOI:
-
Abstract:
A frag ilew ate rma rk ing algo rithm is presented, wh ich can be app lied to b inary tex t im age verification. Based on the value o f im age b lock edges, the initial va lues o f chaoticm apping a re produced. By iterating seve ra l tim es o f the chao tic m apping, the wa term ark is ob tained and embedded into the p ixe ls, w hich have prior em bedd ib ility for 3 @ 3 ne ighborhood pattern. The expe rim ental resu lts show that the wa term arked b inary im age have good v isua l quality and that the a lgo rithm can detect and loca lize prec isely the tampers on the w aterm arked im ages.

References:

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Last Update: 2013-04-02